Valved construction for torch handles and method of making the same



March 1952 A. F. CHOUINARD ETAL 2,587,821

VALVED CONSTRUCTION FOR TORCH HANDLES AND METHOD OF MAKING THE SAMEFiled June 2, 1945 2 SHEETSSHEET 1 INVENTOR Alfred J? Choaa'mgd Mikkel!A. Tyla/za BY paw M M ATTORNEYS March 9 A. F. CHOUINARD ETAL 2,587,821

VALVED CONSTRUCTION FOR TORCH HANDLES 1 AND METHOD OF MAKING THE SAME 2SHEETS-SHEET 2 Filed June 2, 1945 S R ml Y mw m N R EWVA O W w A N m MPatented Mar. 4, 1952 VALVED CONSTRUCTION FOR TORCH HANDLES AND METHODOF MAKING THE SAME Alfred F. Chouinard and Mitchell A. Tylutki, Chicago,Ill., assignors to National Cylinder Gas Company, Chicago, Ill., a.corporation of Delaware Application June 2, 1945, Serial N 0. 597,300

This invention relates in general to burners for liame blasting andother analogous purposes, and having one or a series of outlets wherethe flame or flames are produced from a combustible gas such asacetylene, and a combustion supporting gas, which are premixed anddelivered thereto. Constructions of this type usually have a handlewhich atone end supports the burner, and two hoses for the separategases are connected thereto at the rear or opposite end.

The main object of the invention is to provide an improved hoseconnecting member for the rear of the handle, and an improved method ofmakin'g such a member. tion and in carrying out our improved method saidmember is formed of a plurality of parts which may be made of bar stockrather than a casting, and therefore are easy and inexpensive to machinebefore assembly, and may be easily assembled. Two of these parts carrythe controlling valves for the gases, and are so positioned that thevalves may be easily and independently operated. A third part serves toconnect the other two parts to the handle, and is provided with "acentrally disposed connection for 'a conduit through which water may bedelivered for circulation through the handle, to cool the latter. Thegas hoses are connected below the axial center of the handle to give thehandle a balance, making it easy to hold the burner in proper positionin respect to a work surface. Other features and advantages will beapparent from the drawing, or will be pointed out hereinafter.

In the drawing:

Fig. l-is a perspective view of one embodiment of our improvedconstruction.

Fig. 2 is a top plan view of the handle, portions being broken away. 1

Fig. 3 is-a side elevation of the handle, portions being broken away.

Fig} is an end view, for instance in the plane of the line 4-4 of Fig.3.

Fig. 5 is a section through one valve, and on the line 5-5 of Fig. 4.

Fig. 6 is a section on the line 6-6 of Fig. 4.

Fig. 7 is a face viewof the base or connecting member, and

Fig. 8 is an edge view of the member shown in Fig. 7.

In the specific construction illustrated, there is shown a burner [0which has a row of outlets II to which the gas mixture is delivered, andat which there is formed a row of closely spaced flames. The burner isalso shown as having a second row of outlets l2 for jets of quenching Inour improved construe- 6 Claims. (Cl. 277-46) water. The details of theburner itself have not been illustrated, as it forms no novel part ofthe present invention. It may be of the type shown in the Mott andWhaley Patent 2,218,827, or of any other suitable type.

The burner is secured to and carriedby a handle section l3 which may bea tube encircling the pipe [4 delivering the gas mixture to the burner,and if quenching jets are employed, as at the outlets l2, the handle mayserve to conduct water to the burner and around the inner gas mixturepipe I 4 to keep the gas mixture cool. Water may be delivered to thishandle section through a hose I5.

The rear end of the handle section [3 is detachably connected to a rearhandle section It which may be held in the hand of the operator, or heldby use of a torch clamp. As shown, a nut I! is screwed onto an end pieceI8 of the handle section H to hold in place a gas mixer [9 for bringingthe oxygen and acetylene in the proper relative proportions, and underthe desired pressure. This mixer I 9 may be screwed into the handlesection l3 to connect with pipe M.

Our invention relates primarily to the construction of the partsemployed at the rear of the handle section I6, hereinafter referred toas the handle, as it is the part which is grasped or held in theoperation of the torch. Instead of making these parts of a singlecasting, which would require expensive patterns and expensive jigs formachining, we make them of three pieces of bar stock which may be easilymachined before assembly, and then brazed together. These parts includea part 20 shown in Figs. 7 and 8, and

. hereinafter referred to as a base, and two parts 35 and 36,hereinafter referred to as valve casings.

The base 20 is in the form of a plate with a large boss 2| on one sideadapted to snugly fit into the tubular handle l6 and be secured "theretoin any suitable manner. On the other or outer side of the plate are twolarge grooves or channels 22 and 23 disposed at an acute angle to eachother, and presenting cylindrical surfaces. The two grooves may bedisposed quite close together at one edge of the plate, as shown at thelower edge of Fig- 7. and may be spaced some distance apart at theopposite edge, as shown at the upper edge of Fig. '7, so as to leave asubstantially fiat triangular surface 24 therebetween. Two parallelholes 25 and 26 are bored into the boss 2|, and two holes 21 and 28 arebored into the surfaces of the rooves or channels 22 and 23 to intersect3 the holes 25 and 26 respectively, as shown in Fig. 6.

If the handle it is to be water cooled, two holes 29 and 39 are boredthrough the plate, in the triangular portion 24 between the grooves 22and 23, the upper one being for the inflow of water from a hose 3i to apipe 32 within the handle, and the other for the outflow of water usedin cooling the handle.

The two valve casings 35 and 36 may be-similar in shape and size, butmade as right hand and left hand, so far as concerns the gas outletports which register with the passages 21 and 28. Each valve casing ismade of a single piece of cylindrical bar stock, and has an outersurface of the same curvature as the grooves 22 and 23, so that they maybe brazed in place insaid grooves and thus be disposed at an angle toeach other, as shown particularly in Fig. 4.

Each valve casing has a hole drilled from end to end to form a valvechamber 31 and a valve seat 38, and is provided with a valve member 3%swiveled on the end of a valve stem 40, which latter is threaded in agland or bushing llprovided with a packing 42 and a packinghut- 63.-

The outer end of the valve stem has'a suitable handle 44. Below thevalve seat there is an inlet port t5 into which a nipple 45 may beinserted to abut against a flattened face 41, brazed-in place, and

adapted for connection to a gas supply hose 48.

From the valve chamber above the valve' seat there is a port 49 forregistering with the corresponding passage 2'! or 28 when the valvecasing is braz'ed'to thebas'e'member 20.;

It will thus be seen that the valve casings, being at an angle to eachother, permit the hose' connections 46 to be relatively close together,have the valve handles 44 spaced sufficientlyiar apart to permiteasy'operation of either valve, and provide adequate space between thevalve casings for the cooling water connection, if such be employed.

All of the machining of the parts 20, 35 and 3% may be effected beforethe assembly.

The gases delivered through the two hoses 48 and the two valve casingsmay be conducted to the mixer [8 by suitable pipes in the handle 16. Asshown in Figs. 2 and 3, acetylene may fiow through a pipe 50, and oxygenthrough a pipe 5!,

to passages in the block :8 in which the mixer I9 is mounted. This blockmay have a V-passage 53, to one leg of which the water pipe 32-may beconnected. Thus, water delivered through the hose 3| maybe led to theV-shaped passage 53 to cool the block I8, and then discharged into thehandle It to flow back and out through the lower port 29, to which ahose 3| may be connected if desired.

It will be obvious that various changes may be made in the details ofconstruction, and the draw-' ing illustrates merely one embodiment ofthe in- ;vention. As previously indicated, the ports 29 and 30 of thebase member and pipe 32 in the handle maybe omitted if cooling of thehandle is not desired or is not considered necessary. Also, the

hose 15 may beomitted if it is not desired to deliver quenching jets ofwater to the workpiece.

for torch handles, including a base 'sec'tionl'ia ingone side adapted toextend into and be secured to the rear end of atorch handle, and'havingin the opposite side a pair of grooves at an for said valves and at theends of said pieces which are-farthest apart.

V acute angle to each other, and passages leading from said grooves tothe first mentioned side of said section, and a pair of valve casingsdisposed in said grooves and welded to said base section, each valvecasing being provided with an inlet in the side away from said base, andan outlet in the side disposed in said grooves and registering with thecorresponding one of said passages, a valve movable lengthwise of thevalve casing, said inlets being at the ends of said valve casings whichare close together, and said valves having handle at the end of saidcasings which are farthest apart."

2. The method of forming a hose connecting valved unit for torchhandles, including the steps welding said valve blocks in saidgrooveswith the end portions having the inletsdis'p'osed adjacent to eachother'and the outlets registering with the passages through said basemember."

3. A hose-connecting valved unit fora torch handle, including a circulardisc-like base member having a'coaxial bosson one surface and adapted tobe extended into and secured-to a torch handle, and transverse groovesatan angle to each other on the opposite surface, a pair-of passageseach leading from a separate one of said grooves and through said boss,apair'of" pieces of bar stock each having a valve chamber and a valveseat therein, a lateral outlet passage leading from said valve chamberabovesaid valve seat and'a lateral inlet passage below said valve seat,said bar stock pieces being welded in and along said grooves with theoutlet passages reg.- istering with said passages in said base member,and with the inlet passages substantially parallel to each other and onthe side 'away from said disc-like member, and valves in said pieces andmovable toward andfrom said valve seats.

4. A hose-connecting valved unit for a torch handle, including acircular disc-like base member having ,a substantially cylindricalcoaxialboss on one surface and adapted to be extended into and securedto a torch handle, and transverse grooves at an angle to each other onthe opposite surface, a pair of passages one leading from each grooveand through said boss, apair of pieces of bar stock each having a valvechamber and a valve seat therein, a lateral outlet passage leading fromsaid. valve chamber, above said ,valve seat, and a lateral inlet passagebelow saidvalve seat, said bar stock pieces being welded in, and alongsaid grooves with the first mentioned passage thereof registering with"said passages in said base member, andwith the second mentionedpassages on the side away from said disc-like member, valves in saidpieces and movable toward and from said valve seats, and handles barstock 5, The method of forming a hose-connecting valved unit for a torchhandle, including the steps of shaping a circular disc-like base member"fro'm'bar stock't'o form a circular coaxial boss on one surface andtransverse grooves at an angle to each other on the opposite surface,boring a pair of passages each leading from a separate one of saidgroove and through said boss, boring an axial passage into each of apair of pieces of bar stock to form a valve chamber and a valve seattherein, boring into each of said pieces a lateral passage leading tosaid first mentioned passage above said valve seat, boring into each ofsaid pieces a lateral passage below said valve seat, the two passages ofeach piece being at an angle to each other, and welding said bar stockpieces into said grooves with said first mentioned passages at an angleto each other and registering with said passages in said base member,and with the second mentioned passages substantially parallel to eachother and on the side away from said disc-like member.

6. The method of forming a hose-connecting valved unit for a torchhandle, including the steps of shaping a circular disc-like base memberfrom bar stock to form a circular coaxial boss on one surface andtransverse grooves at an angle to each other on the opposite surface,boring a pair of passages each leading from a separate one of saidgrooves and through said boss, boring an axial passage into each of apair of pieces of bar stock to form a valve chamber and a seat therein,boring into each of said pieces a lateral passage leading to said firstmentioned passage above said valve seat, boring into each of said piecesa lateral passage below said valve seat, and welding said bar stockpieces into said grooves with said first mentioned passages at an angleto each other and registering with said passages in said base member,and with the sec- 0nd mentioned passages on the side away from saiddisc-like member.

ALFRED F. CHOUINARD.

MITCHELL A. TYLUTKI.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,105,290 Mueller July 28, 19141,198,188 Bucknam Sept. 12, 1916 1,204,389 Anderson Nov. 14, 19161,316,681 Burritt Sept. 23, 1919 1,920,965 Campbell Aug. 8, 19331,943,708 Werder Jan. 16, 1934 1,956,554 Baldwin May 1, 1934 2,078,048Baldwin Apr. 20, 1937 2,337,659 Hughey Dec. 28, 1943

